Earthquake seismic design 7.
Rcc retaining wall design reinforcement details.
F c 3000 psi fy 60 ksi natural soil development of structural design equations.
Determine the factors of safety against sliding and overturning.
Rcc wall is.
In this example the structural design of the three retaining wall components is performed by hand.
Functions and parts of these retaining walls are discussed.
Provide the distribution steel.
M c c 400 mm.
Building codes and retaining walls 5.
Design the wall and base reinforcement assuming fcu 35 knm 2 f y 500 knm 2 and the cover to reinforcement in the wall and base are respectively 35.
Load from slab is transferred as axial load to wall.
The stem may have constant thickness along the length or may be tapered based on economic and construction criteria.
Types of reinforced concrete retaining walls are cantilever retaining walls and counterfort retaining walls.
Retaining wall are generally used to retain earth or other material to maintain unequal levels on two faces.
Coefþcient of friction is 0 4 and the unit weight of reinforced concrete is 24 knm 3 1.
Forces on retaining walls 6.
Soil bearing and stability 8.
Two equations are developed.
M h1 7 m h 8 25 m.
Reinforced concrete wall is classified as.
Details of wall mm cf 3 h 7 8.
Soil mechanics simplified 4.
Also check for shear at the junction.
Counterfort retaining wall comprises of a stem toe slab and heel.
Ce 437 537 spring 2011 retaining wall design example 1 8 design a reinforced concrete retaining wall for the following conditions.
Reinforced concrete cantilever retaining wall analysis and design aci 318 14 reinforced concrete cantilever retaining walls consist of a relatively thin stem and a base slab.
Retaining wall design 10 editionth a design guide for earth retaining structures contents at a glance.
Design and detailing of retaining walls learning outcomes.
Counterfort retaining wall rcc buttress wall rcc 3.
Reinforced concrete wall design basics mike o shea p e.
Classification of retaining walls backfill backfill gravity rw t shaped rw l shaped rw tile.
Meanwhile the height of earth to be retaining go beyond 5 meter the bending moment started in the stem heel and toe slabs are very large which gives rise to large thickness of structural elements and turns out to be pricy therefore counterfort type retaining wall is selected for larger heights.
Provide enough development length.
Cantilever retaining wall rcc inverted t and l.
Design example cantilever retaining wall.
When depth is large it is called rc wall.
Design procedure overview 3.
Plain concrete wall when reinforcement 0 4.
The base is divided into two parts the heel and toe.
Design is similar to a rc column breadth equal to thickness of wall and depth equal to 1m.
Calculate ground bearing pressures.